Former members

Jean-Jacques van Oosten

Dr Jean-Jacques van Oosten joined the Group and the Senior Executive Committee on 1st January 2018 as Chief Technology Officer (CTO), after a twenty one-year career primarily in the retail and digital sectors.

Prior to his latest role as Group Chief Digital Officer and CEO of Rewe Digital, Dr van Oosten held a number of CIO positions at Travis Perkins Group, Tesco, Kingfisher, EDS and Unilever. Through his consulting company, Dr van Oosten advised retailers on their multichannel strategy and transformation programmes. He graduated from the London Business School and holds a PhD in molecular genetics. Dr van Oosten resigned as CTO and stepped down from the Senior Executive Committee with effect on 2 May 2018.


Eric Vallat

Mr Eric Vallat joined the Group and the Senior Executive Committee on 1 June 2018 as the Head of Fashion and Accessories Maisons (F&A).

Mr Vallat is a graduate from the HEC business school (France), Mr Vallat brings over 20 years of managerial experience across Louis Vuitton Europe, Christian Dior Couture Japan, Bonpoint and J.M. Weston and, since 2014, Rémy Martin as CEO. In his latest position, Mr Vallat was also a member of the Rémy Cointreau Group’s Executive Committee and, since 2016, chairman of Mount Gay Rum.

Mr Vallat resigned as Head of F&A and stepped down from the Senior Executive Committee with effect on 26 October 2019.


Sophie Guieysse

Ms Sophie Guieysse, Group Human Resources Director, stepped down from the Senior Executive Committee on 12 June 2020, which she had joined on 1st October 2017.

Ms Guieysse is a graduate from the Ecole Polytechnique, the Ecole Nationale des Ponts et Chaussées and holds an MBA from the Collège des Ingénieurs. Ms Guieysse began her career holding operational functions at a number of French Ministries. From 1997 until 2005, she held various human resources roles at LVMH. Her ultimate role there was as Director of Human Resources of the LVMH group. In 2005, Ms Guieysse joined Canal + group where she spent ten years as Human Resources Director and member of the Executive Committee. Since 2016, Ms Guieysse had been advising Dior on the future of luxury in a connected world.

Ms Guieysse serves on the Board of Directors of Maisons du Monde and is Chairman of its Nominations & Compensation Committee. In addition, Ms Guieysse is a member of the Remuneration Committee of Paris 2024 Olympic Games Organising Committee and of the 2023 Rugby World Cup Organising Committee.